Thanks everyone. I think I'm ready to pull the trigger--leaning toward the e30s. Anyone else out there have any strong opinions or great/terrible experiences? Thanks again...

I want to believe the S6 Sport FI is up to the task, but there are many cruddy IEMs out there that are "made for" working out. I'm not confident that marketing or manufacturer's intent necessarily correlate to a complete product.

Thanks for the recommendation!

Will any in the M6 series do? You sound pretty confident, is there anything in particular that makes you prefer the M6s?

I'm looking to purchase a durable and secure set of headphones to wear when I go running or workout at the gym. I should say that generally, I have a really tough time actually getting any earbuds to stay put in my (apparently oddly-shaped) ear canals, not to mention when I start sweating. The...

Are yur buds still the best choice out there? It's about a year since this post. I too am looking for sport headphones that are durable and will actually stay in put in my ears without falling out once I start sweating. Yurbuds still the way to go?